Insulation and recuperation ducts
Blown wool and batts, PIR boards, membranes and sealing, heat recovery ducts. Based in Kaunas, working across Lithuania, quickly and properly.
Insulation without the worry
We insulate lofts and roofs, lay PIR boards, seal membranes and run heat recovery ducts all over Lithuania.
How much heat escapes?
Choose a material and thickness. We count one square metre of ceiling with −20 °C outside and +20 °C inside.
W per m²
- through the whole area
- W
- U, W/m²K
- With no insulation, per m²
- 286 W
The same warmth from .
A simplified estimate from U = 1 / (Rsi + Rse + d/λ), counting the insulation layer only. We choose the exact build-up after seeing the structure.

What you get
No seams
Blown wool fills every gap between joists, cables and pipes.
Non-combustible wool
Mineral wool is fire class A1.
Precise cutting
Batts are cut wider than the gap so no cracks remain.
A thinner layer
PIR insulates almost twice as well as wool.
Taped seams
Every PIR and membrane seam is sealed with tape.
Sealed penetrations
Pipes, cables and ducts get airtight grommets.
Insulated ducts
In a cold loft the ducts stay free of condensation.
All of Lithuania
Based in Kaunas, we bring all the equipment to any town.
A tidy finish
We clean up and show you the result.
Services
- Blown woolWe blow loose mineral wool into ceilings, lofts and timber-frame walls. The layer fills every gap and leaves no seams.

- Wool battsWe insulate pitched roofs, timber-frame walls and partitions with wool batts and rolls cut exactly to each gap.

- PIR boardsPIR boards insulate almost twice as well as wool, so they suit places where every centimetre counts.

- Membranes and sealingInsulation only works when it is airtight. We lay membranes with overlaps and seal every joint and penetration.

- Recuperation ductsWe install heat recovery duct runs, distribution boxes and diffusers, insulate ducts in cold zones and connect them to the unit.

How we work
Thermispro is an insulation crew from Kaunas. From the first call to a tidy loft, we do it all ourselves.
You call or write: what needs insulating, how large the area is and where the building is.
+370 635 72116From the area, the build-up and the thickness you want, we work out the materials and give you a price. If needed, we visit first.

We arrive with all the equipment and materials, protect the rooms and work tidily. Most jobs take one or a few days.

We clean up and show you the result: the layer depth, the taped seams, the connected ducts.

Questions
How much does insulation cost?
The price depends on the material, the area, the layer thickness and where the building is. Write or call and we will price your job.
Do you work outside Kaunas?
Yes. We are based in Kaunas but work across Lithuania: Vilnius, Klaipėda, Šiauliai, Panevėžys and elsewhere.
What is the difference between blown wool and batts?
It is the same mineral wool in different forms. Blown wool goes into ceilings and closed cavities; batts and rolls go into roofs, walls and partitions.
How thick should ceiling insulation be?
A cold loft floor usually gets 300–500 mm of wool. The calculator above shows how thickness changes heat loss.
Why does sealing matter?
Warm air escapes and moisture gets in through gaps, so even thick insulation works worse. Airtight membranes and seams let the insulation work fully.
Do you install the heat recovery unit?
We install the ducts and connect them to the unit. Choosing and supplying the unit itself is agreed for each job separately.
Request a quote
Tell us what you want insulated and where. We will reply with a price.